用AT89C51单片机的P2口控制8个Led的流水灯的C程序看不懂?从P2-0到P2-7灯依次单独点亮后,又从P2-7到P2-0灯依次单独点亮如此反复循环,程序如下(低电平被点亮):#include void Delay1ms(unsigned int count){ unsigned int i,j; for(i=0;i
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#include
void Delay1ms(unsigned int count)
/*延时函数,延迟时间为count×1ms)*/
{ unsigned int i,j;
for(i=0;i